Using the network shown in figure $4$ below, answer the following

A$.$PC$0$ wanted to access the newly connected webserver www$.$yaya.com, explain the steps needed by PC$0$ starting from the DNS to the TCP$/$IP protocol.

B$.$ Explain, what is RIP protocol? And how the routers R$0$ to R$5$ maintain their routing tables.

C$.$ Explain the difference between static, default, and dynamic routing, highlight which routers in the network below might set to have default rooting.

D$.$ Explain what is meant by $$rooting loops$,$ the highlight by example how this can happen if network $192\mathrm{.}168\mathrm{.}1\mathrm{.}0$ is down.

E$.$ What is meant by $$split horizon$$ and $$holding down$,$ and how it can be helpful to solve rooting loops.

F$.$ Find the shortest path to all routers based on Dijkstra's algorithm. Show the shortest path from PC$0$ to the www$.$yaya.com webserver.